Exchange rules configured through Outlook are omnipresent. Sieve might be supported by many email clients, but is pretty much nonexistent in corporate email.

Exchange rules configured through Outlook are omnipresent. Sieve might be supported by many email clients, but is pretty much nonexistent in corporate email. Actually, if someone points me to one hosted email provider that does support it, I'd be glad - I was wondering about trying it out but nobody supports it.